首次在美国确认发现一只雄性亚洲长角蜱（蜱螨目：硬蜱科）。

Margrey Sara F, Mertins James W, Garrett Leeanne C, Gary Richard, Pesapane Risa

Ohio Department of Health, Columbus, OH, USA.

USDA APHIS, Veterinary Services, Diagnostics and Biologics, National Veterinary Services Laboratories, Ames, IA, USA.

J Med Entomol. 2025 May 13;62(3):706-711. doi: 10.1093/jme/tjaf040.

Haemaphysalis longicornis Neumann, the Asian longhorned tick (ALT), has quickly established widespread invasive populations in the United States since its first at-large detection in 2017. Until recently, no male ALT has been verifiably collected in the United States, despite examinations of tens of thousands of individual specimens, thus affirming that the US incursion was founded by ticks from a parthenogenetic source population of ALT. This report documents the first validated male ALT specimen in the United States, collected in May 2023 on a cattle farm in Gallia County, Ohio. This specimen shows morphological signs of gynandromorphism in its palps, hypostome, genitalia, and anal aperture.

亚洲长角血蜱（Haemaphysalis longicornis Neumann）自2017年首次在美国野外被发现以来，已迅速在美国各地建立起广泛的入侵种群。直到最近，尽管检查了数以万计的个体标本，但在美国尚未能证实采集到雄性亚洲长角血蜱，这证实了美国的这一入侵种群是由亚洲长角血蜱孤雌生殖源种群的蜱虫建立的。本报告记录了2023年5月在俄亥俄州加利亚县一个养牛场采集到的美国首个经证实的雄性亚洲长角血蜱标本。该标本在触须、口下板、生殖器和肛门孔处显示出雌雄同体的形态特征。